Windows XP DSL Setup
 

Click “Start”. Then select “Control Panel”

If you see "Select a Category" click "Switch to Classic View" on the left hand side.

Then double-click “Network Connections”.

Right Click on "Local Area Connection" and choose "Properties"

Select "Internet Protocol (TCP/IP)" and click "Properties"

Make sure that "Obtain an IP address automatically" and "Obtain DNS server address automatically" are both selected as in the picture below